We always look forward to BuildingGreen.com's yearly list of the best green products. They're always on the mark with selecting items that make a positive impact in the green building market. This year's products were selected through the search for companies that solved pressing needs in energy efficiency, reduced toxicity in building materials, enhanced retrofit applications and offered unique solutions in other areas.

BuildingGreen's founder and GreenSpec executive editor, Alex Wilson, states, "There are more 'green' building products than ever, but not all of them address a real need — or worse, some of them may create new problems down the road." Here are the top green building products of 2012: